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(No Model.)

J. W. GOTTSCHALK. TIP FOR TELEPHON GO'RDS.

No. 593,467. Patented-Nov. 9,4189?.

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- of a modification.

UNITED STATES PATENT OFFICE.

JOHN WV. GOTTSOHALK, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO ALFREDF. MOORE, OF SAME PLACE.

TIP FOR TELEPHONE-CORUS.

SPECIFICATION forming part of Letters Patent No. 593,46*?, datedNovember 9, 1897.

L Application iiled October 6, 1897. Serial No. 654,245. (No model.)

T0 all whom t may concern:

Be it known that l, JOHN W. GorrscHALK, acitizen of the United States,residing in Philadelphia, Pennsylvania, have invented certainImprovements in Tips for Telephone- Cords,y doc., of which the followingis a specification. Y

The object ofmy invention is to manufacture a cord-tip especiallyadapted for use in connection with telephones and other electricalinstruments using a fiexible wire connection, in which the tip-sectionwill not only be electrically connected to the wire, but also rigidlysecured to the covering, so that the tip will not pull out, dispensingwith outside mechanica-l supports heretofore used in many instances.

In the accompanying drawings, Figure l is a side view of my improved tipattachment, showing the shell in section. Y Fig. 2 is a view similar toFig. l with the shell and clampplates in section. Fig. 3 is a detachedperspective view of the different parts of the tip. Figs. 4, 5, and 6are views showing the method of assembling the A is an ordinary flexibleconductor, in the present instance consisting of a series of ine wireswhich are passed through a coiled flexible Wire, and upon this wire isbraided the fabric covering. The iieXible conductor is used mainly forconnecting the movable parts of an electrical apparatus to the fixedparts and is generallyprovided with tips B, so that it can be readilycoupled to the movable and fixed parts.

While my invention is especially used in connection with telephones, itwill be understood that it can be used on any apparatus where a flexibleconductor is required.

My improved tip consists of three sections a a a2. The section alias atone end a rounded portion forming the pin and at the opposite end anenlarged segmental shank adapted to encircle and clamp a portion of thecord, while the clamp-section a is segmental in form and is a duplicateof the shank of the section a. One end a of the section a is turned inand perforated, so that it can be slipped over the pin portion of thesection a. The shell section a2 is so shaped as to pass parts, and Fig.7 is a view.

over both the sections a and a and has a perforation in the end to allowfor the passage of the pin end of the section a through it. On thesegmental portions of the'sections a d 5 5 are struck up teeth a4 a5,respectively, which engage with the fabric of the cord and in thepresent instance enter the coils` of the wrapping-wire, so that when theshell is forced down upon the sections a a it will force the 6o teethinto the cord preventing thel withdrawal of the pin-section 'and thebreaking of the contact by the parting of the pin from the wires.

In assembling the parts I preferably bare the wire or wires a shortdistance, as shown in Fig. 4, then solder the lends of the wires thusbared to the section a at a, forming a good electrical connection atthis point. The section a is then slipped over the section a, 7o asshown in Fig. 5, after which the shell is forced over the two sections.Thus a joint is completed which is stron g and in which the electricalcontact cannot be broken without breaking the mechanical connection.

In Fig. 7 I have shown a modification in which the pin is made separatefrom the shank and is preferably enlarged at its inner end. The wiresare secured to this end by solder, and two clamp-sections similar to thesection 8o a are mounted on the pin and held to the covering by theshell.

In some instances I may dispense with the shell and wrap wire around thetwo sections a a and the conductor, so as to force the sections onto theconductor; but I prefer the shell, as shown.

It will therefore be seen that by my inventionI can provide a tip thatwill have considerable mechanical strength, that I relieve 9o the strainupon the conductor and require no outside support, that I p rovidebetter electrical contact than heretofore, and make a neat and compacttip which can be more economically attached than heretofore.

It will be understood that my improved tip can be applied to any form ofiieXible conductor without departing from my invention.

I claim as my invention-`- l. The combination of an electrical conducrootor, a pin and a clamp having a perforated end slipped over the pin,with means for holding the elainp onto the electrical conductor,substantially as described.

2. The combination of a tip made in three sections, one section having apin with a segmental shank, another section being segmental in form andhaving a perforated extension adapted to pass over the pin, with aperforated shell adapted to be passed over the extension securing thetwo clamps to a conduetor7 substantially as described.

3. The combination of a ilexible conductor covered with fabric, aclamp-section having one portion in the form of a pin and the otherportion in the forni of a segment, a tooth on the said segmental portionengaging the fabric, said section being secured to the conductor bysolder7 a second segmental sect-ion With abent and perforated endadapted to slip over the pin of the irst-mentioned section and havingteeth engaging the fabric, and a shell for holding the segmentalsections in place, substantially as described.

Il. As a new article of manufacture; a terminal for flexible electricalconductors cen.- sisting of a struck-np piece of metal having a pinformed on one end and a toothed segment formed on the opposite end,substantially as described.

5. The combination of a covered electric conductor, a section having oneportion in the form of a pin and another portion in the form of asegment, said section being secured to the Wire, With a shell having anopening at one end through which the pin portion ol' the section passes,the said shell clamping the Section to the fabric covering of the Wire,substantially as described.

In testimony whereof I have signed my name to this specification in thepresence el' two subscribing Witnesses.

JOHN NV. GOT' SCIIALK lVitnesses:

l?. E. BECHTOLD, Jos. Il. KLEIN.

